How are the functions y=x and y= x -3 related? how are their graphs related

step-by-step explanation:

do you know how to graph these two straight lines (linear functions).   when you do so, you can make the comparison requested.

you'll find that one of them has a greater slope than the other, but both lines pass through the origin.

can you see that y = 2x is the result of a vertical stretch by a factor of two of the more basic y=x?